48results about How to "Low temperature flexibility" patented technology

A method for using a thermoplastic elastomeric composition which contains a multi-staged emulsion polymer binder is provided. An elastomeric composition which contains a multi-staged emulsion polymer binder and a photosensitive composition and a method for using the elastomeric composition in elastomeric coatings, caulks, or sealants is also provided.

A highly flame retardant plasticized polyvinyl chloride composition includes a mixture of a dialkyl or dialkenyl tetrahalophthalate and a brominated/chlorinated paraffin. The composition exhibits an absence of brittleness, and substantial flexibility at low temperatures. The composition can be used to form sheet materials, molding compositions, roofing materials, PVC formed jackets and insulation for wire and cable products.

Tubular polymeric member for articles such as tubing and hoses. The member is formed of an alloy which is a blend of a polyamide and a polyolefin, and a compatibilizing copolymer.

Tubular polymeric member for articles such as tubing and hoses. The member is formed of composition of a copolyester thermoplastic elastomer material.

The invention discloses a low-temperature rapidly cured acrylic ester modified epoxy resin joint sealant used in roads and bridges. The joint sealant comprises a component A and a component B, wherein the component A comprises 55 parts of bisphenol F diglycidyl ether, 10-12 parts of graft polymerized epoxy resin and acrylic copolymer and 33-60 parts of an acrylic monomer; the component B comprises 5-15 parts of modified 1,3-cyclohexanediamine and 30-45 parts of modified hexamethylenediamine; the joint sealant is prepared by respectively stirring and mixing the component A and the component B, mixing the two components in the mass ratio of 100:(90-100), uniformly stirring, adding 1-5 parts by mass of an accelerant diacyl organic peroxide into the mixed liquid, and further stirring. The joint sealant disclosed by the invention is high in binding strength, has the characteristic of excellent aging resistance, low flexibility, low viscosity, high interface binding force, secondary fatigue cracking resistance and the like, and can be used in joint sealing construction all year around.

The invention discloses a low temperature resistant triple coextrusion composite film and a preparation method thereof. The composite film in the invention is formed through carrying out triple coextrusion by a casting machine, and comprises an outer layer, a middle layer and an inner layer which are composited together; the materials of the middle layer adopt metallocene low-density linear polyethylene and polypropylene at the mass ratio of 1:10-1:1; and the melt index of the metallocene low-density linear polyethylene is 1-3.5. After the scheme is adopted, compared with the traditional CPP film, the low temperature resistant triple coextrusion composite film of the invention has the advantages of greatly improving the low temperature resistant and freezing resistance performance, being capable of being normally used under the environment of minus 30 DEG C, having no influence on the barrier property and strength thereof and being particularly suitable for packaging of quick frozen products such as boiled dumplings, sweet soup balls and the like.

Triglyceride and other polyol ester PVC plasticizers can be produced by recovery of branched C6 to C9 aldehydes from a hydroformylation product, optional hydrogenation to the alcohol, oxidation to the acid with oxygen and/or air, recovery of the resulting acid, and esterification with glycerol, ethylene glycol, propylene glycol or mixtures thereof. The branched alkyl chains comprise at least 10% methyl branching. Special triglycerides are derived from branched aliphatic acids having alkyl chains with average carbon numbers from 6 to 9 and at least 10% methyl branching. These triglycerides are fast fusing plasticisers if before esterification with glycerol, an aryl acid is introduced together with the aliphatic acids.

A method for waterproofing a substrate, the method including adhering an adhesive member obtained by using an active hydrogen-containing synthetic resin, to a urethane-based waterproof layer to laminate a pavement adhesive layer; applying or spraying an isocyanate group-containing compound onto the pavement adhesive layer; and paving an asphalt mixture on the surface of the pavement adhesive layer.

The invention discloses an anticorrosive tough coating material for an outdoor communication tower, and a preparation method thereof, wherein the anticorrosive tough coating material is prepared fromthe following raw materials by weight: 12-18 parts of a polytrifluorochloroethylene resin, 35-45 parts of a bisphenol A type epoxy resin, 8-12 parts of polyphenylmethylsiloxane, 2-6 parts of alpha,omega-dihydroxy polydimethylsiloxane, 2-6 parts of amino-modified polysiloxane, 2-6 parts of hexamethyldisilazane, 2-6 parts of gas-phase nanometer silicon dioxide, 7-11 parts of silicon carbide short fibers, 12-16 parts of mica iron oxide powder, 2-8 parts of xylene, 10-20 parts of an acetone aqueous solution and 1-3 parts of a polyamine mixed curing agent. According to the invention, the prepared anticorrosive tough coating material has excellent anticorrosive performance, weather resistance and good elasticity; and by coating the communication tower with the anticorrosive tough coating material, the coating is compact, has excellent anticorrosive, anti-aging, hydrophobic, stain-resistant and impact-resistant effects, can well adapt to severe environments, and effectively prolongs the service life of the communication tower.

The invention provides an asphalt sizing material for a waterproof coiled material, a preparation method of the asphalt sizing material, and the waterproof coiled material, and relates to the technical field of the waterproof coiled material. The asphalt sizing material is mainly prepared from asphalt, butadiene styrene rubber, petroleum resin, polypropylene wax, erucyl amide, a softening agent and a stabilizer, wherein the butadiene styrene rubber can obviously improve the low-temperature flexibility and the high-temperature resistance of the asphalt sizing material; the petroleum resin can obviously improve the viscosity, the hardness and the heat stability of the asphalt sizing material; the polypropylene wax and the erucyl amide can obviously improve the high-temperature resistance and the heat stability of the asphalt sizing material; the softening agent can effectively improve the viscosity and the ductility of the sizing material; and the stabilizer can prevent decomposition and ageing of the sizing material. Therefore, the asphalt sizing material provided by the invention can obviously improve the low-temperature flexibility, the high-temperature resistance and the cohesive force through compounding of the components and the component content, and has excellent waterproof property. The asphalt sizing material can be widely applied to preparation of various types of waterproof coiled materials.

The present invention provides radiation curable resin compositions having enhanced low temperature flexibility and to methods of using these compositions. The radiation curable resin compositions contain no or essentially no volatile organic components (VOCs), and find particular use as coating compositions. In particular, the radiation curable resin compositions of this invention comprise a vinyl dioxolane end-capped oligomer blended with a photoinitiator.

The invention discloses a preparation method of a low-temperature-resisting three-layer co-extruded composite thin film. The composite thin film is formed by co-extruding three layers through a casting machine and is provided with an outer layer, a middle layer and an inner layer, which are compounded together, wherein raw materials of the middle layer comprise metallocene linear low density polyethylene and polypropylene in a weight ratio of 1:10 to 1:1, and the fusion index of the metallocene linear low density polyethylene is 1-3.5. With the adoption of the scheme, when a conventional CPP (Chlorinated Polypropylene) thin film is compared with the low-temperature-resisting three-layer co-extruded composite thin film, the low-temperature-resisting and anti-freezing performance of the co-extruded three-layered composite thin film is greatly improved, the low-temperature-resisting three-layer co-extruded composite thin film can be normally used in an environment of -30 DEG C and the barrier property and the strength of the composite thin film are not influenced, and thus the low-temperature-resisting three-layer co-extruded composite thin film is particularly suitable for packaging of quick frozen products including dumplings, rice dumplings and the like.

The invention belongs to the field of polyurethane surface treatment agents, and particularly relates to a self-extinction skin-feeling solvent-free polyurethane waterborne matte surface treatment agent. The self-extinction skin-feeling solvent-free polyurethane waterborne matte surface treatment agent comprises 100 parts of waterborne extinction polyurethane resin, 150 parts of water, 4 parts ofwetting agent UL-5125, 0.5 part of defoaming agent F-530, and 5 parts of polyurethane thickening agent 8807. The invention further provides a preparation method. By adopting the self-extinction skin-feeling solvent-free polyurethane waterborne matte surface treatment agent, the problem of surface whitening of synthetic leather due to the separation of an organic phase and an inorganic phase of silicon dioxide and polyurethane film-forming agent in the existing treatment agent can be solved; and by jointly using the wetting agent and the defoaming agent, not only can the surface energy be reduced, but also bubbles of the film can be reduced, and the adhesiveness of the surface treatment agent can be improved.

The invention discloses a fireproof ceramic aluminum veneer which comprises an aluminum base plate layer, a chromizing film layer and a powder coating layer which are arranged from inside to outside in sequence, wherein the powder coating layer is prepared from the following raw materials in parts: 30-55 parts of epoxy resin, 45-75 parts of phenolic resin, 5-10 parts of rosin, 6-10 parts of polyethylene wax, 30-50 parts of polyester resin, 2-5 parts of diethanol amine, 1-3 parts of terephthalic acid, 2-5 parts of magnesium silicate, 2-8 parts of aluminum silicate, 3-8 parts of kieselguhr, 5-7 parts of nanosilicon dioxide, 1-2 parts of nano ferrum dioxide, 10-15 parts of silicon resin, 5-10 parts of color masterbatch powder and 2-5 parts of nanometer titania. The fireproof ceramic aluminum veneer has the advantages of fire prevention, anti-oxidation, corrosion resistance, attractiveness in appearance, and the like, also has the properties of thermal resistance, chemical resistance, cold resistance, low temperature flexibility, weather resistance and electric property, and has the properties of smoothness, fire prevention and large hardness after being sprayed.

The invention relates to a biological particle purification device and a purification method. The biological particle purification device comprises the following parts: a purification system, and a centrifugation system. The purification system consists of at least one group of affinity columns, wherein the affinity columns are filled with fillers used for adsorbing biological particles and have chromatography channels; the affinity columns are provided with liquid inlets and liquid outlets; the liquid inlets are communicated with the chromatography channels; and the liquid outlets are communicated with the chromatography channels. The centrifugal system is in butt joint with the liquid outlets. The biological particle purification device forms a closed automatic process, so that pollutioncan be avoided; and moreover, continuous automatic purification operation can be achieved so as to ensure high production efficiency of the purification method.

The invention discloses a green coating method based on heavy-metal-free tanned cow crust leather. The method comprises the following procedures: to-be-coated crust leather preparation, first milling, toggling, pre-priming coat spraying, priming coat spraying, ironing, intermediate coat spraying, isolation layer spraying, ironing, standing, second milling, oscillation staking, top coat spraying, ironing, oscillation staking, hand feeling layer spraying and finished leather obtaining, wherein the coating agent components in the priming coat spraying process and the intermediate coat spraying process are the same, each coating agent component comprises an improved polyacrylic acid copolymer composite emulsion, an aliphatic polyurethane resin dispersion liquid, a water-resistant non-expansive polyacrylic acid copolymer emulsion, a cold-resistant zigzag polyacrylic acid resin emulsion and a self-crosslinking polyacrylic acid copolymer emulsion, and the coating agent in the top coat spraying process comprises a resin film-forming agent. According to the invention, the water absorption of the heavy-metal-free tanned cow finished leather is greatly reduced, the heavy-metal-free tanned cow finished leather has good waterproof and antifouling properties, and the coating has good dry/wet rubbing resistance, wear resistance, bending resistance and gluing resistance.